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Class Information
Number: 375/224
Name: Pulse or digital communications > Testing
Description: Subject matter in which at least part of the system is tested.

Sub-classes under this class:

Class Number Class Name Patents
375/225 Data rate 452
375/226 Phase error or phase jitter 553
375/227 Signal noise 545
375/228 With indicator 241

Patents under this class:

Patent Number Title Of Patent Date Issued
8018989 System and method for adjusting a serial communications link Sep. 13, 2011
8014727 Signal processing in electronic apparatus Sep. 6, 2011
8014465 Digital modulator, digital modulating method, digital transceiver system, and testing apparatus Sep. 6, 2011
8010824 Sampling chip activity for real time power estimation Aug. 30, 2011
8006154 Semiconductor integrated circuit and method for testing semiconductor integrated circuit Aug. 23, 2011
8006141 Method for speeding up serial data tolerance testing Aug. 23, 2011
8005180 Data decision apparatus and error measurement apparatus Aug. 23, 2011
8005132 Non-intrusive modem performance analysis Aug. 23, 2011
8000382 I/Q imbalance estimation and correction in a communication system Aug. 16, 2011
7995645 Apparatus for measuring in-phase and quadrature (IQ) imbalance Aug. 9, 2011
7986723 Delay estimation apparatus and method Jul. 26, 2011
7984342 System and method for MPEG CRC error based video network fault detection Jul. 19, 2011
7983331 Method to detect missing filter/splitter and apparatus for performing such a method Jul. 19, 2011
7978755 Methods and systems for detecting defects in serial link transceivers Jul. 12, 2011
7978754 Communication channel calibration with nonvolatile parameter store for recovery Jul. 12, 2011
7970361 Frequency band recognition methods and apparatus Jun. 28, 2011
7970045 Method and device for adapting a signal Jun. 28, 2011
7961777 Signal processing apparatus, signal processing method, and program Jun. 14, 2011
7957461 Calibrating automatic test equipment Jun. 7, 2011
7957460 Method of and a device for generating a signal having a predetermined quality criterion for use in or on a communication system Jun. 7, 2011
7957459 Symbol rate testing method based on signal waveform analysis Jun. 7, 2011
7957458 Jitter measurement apparatus, jitter measurement method, test apparatus and electronic device Jun. 7, 2011
7957323 Methods and apparatus for evaluating the sequence of packets Jun. 7, 2011
7953047 Parser for multiple data streams in a communication system May. 31, 2011
7953023 Adaptive partitioning of traffic without additional probe traffic May. 31, 2011
7949039 Home network testing May. 24, 2011
7948416 Digital to analog converter spur cancellation May. 24, 2011
7941099 SIR estimation techniques May. 10, 2011
7936809 Economical, scalable transceiver jitter test May. 3, 2011
7934132 Communication system and method for controlling the same Apr. 26, 2011
7933557 Methodology to analyze sector capacity in data-only mobile-wireless network Apr. 26, 2011
7933321 Measuring system with a reference signal between a signal generator and a signal analyzer Apr. 26, 2011
7930120 System and circuit for determining data signal jitter via asynchronous sampling Apr. 19, 2011
7925935 Back channel communication Apr. 12, 2011
7924910 Adaptive equalization with group delay Apr. 12, 2011
7924736 DSL system estimation Apr. 12, 2011
7916778 Constructing an energy matrix of a radio signal Mar. 29, 2011
7912433 Method and apparatus for generating channel quality information for wireless communication Mar. 22, 2011
7907661 Testability technique for phase interpolators Mar. 15, 2011
7904763 Reception device, reception method, information processing device, information processing method, and program Mar. 8, 2011
7903751 Device and method for generating a data stream and for generating a multi-channel representation Mar. 8, 2011
7903746 Calibrating parameters in a storage subsystem with wide ports Mar. 8, 2011
7894512 System and method for automatic recovery and covariance adjustment in linear filters Feb. 22, 2011
7890821 Channel impairment emulator systems and methods Feb. 15, 2011
7889751 Low power wireless communication system Feb. 15, 2011
7884715 Method and system for program execution integrity for communication-based angle sensor Feb. 8, 2011
7881672 Tuner, digital demodulating apparatus, controlling method of the apparatus, computer program product for the apparatus, recording medium recording thereon the product, and digital receiver Feb. 1, 2011
7877218 Signal outage detection Jan. 25, 2011
7876815 Methods and apparatus to qualify a wire-pair for a digital subscriber line (DSL) service Jan. 25, 2011
7873324 Apparatus and method for E-HICH/E-RGCH processing, metric estimation and detection Jan. 18, 2011

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